Usability test for Bienvisto

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This is a simple usability test to study how easy it is to use the visualization tool.

My intention is to use the results of these tests in the evaluation chapter of my master thesis.

About you

Have you used Bienvisto before? *

Yes, less than five times

Yes, more than five times

Have you used other network visualization tools before? *

Yes

Set up and basic usage

Complete the following steps and answer the questions below when finished:
1- Read the quick guide: http://miguelsantirso.es/bienvisto/quick-guide
2- Open the visualization tool at http://miguelsantirso.es/bienvisto/
3- Download the sample trace file from http://hg.miguelsantirso.es/bienvisto/downloads/sample_trace_it8.txt.zip
4- Unzip the file and load it into the visualization tool
5- Adjust the zoom and the "camera" so that you can see all the nodes (imagine there is a virtual camera above the nodes "recording" the visualization).
6- Use the options menu to enable the grid
7- Play the first 15 seconds of the simulation and pause the visualization.
8- Hide the visualization of the links between the nodes

Setup and basic usage: How easy was it? *

Not so easy or difficult

Easy

Loading the trace file

Adjusting the zoom level

Moving the camera

Start playing the visualization

Pausing at a precise point of the simulation

Enabling the grid

Hiding the links between the nodes

Set up and basic usage: Comments

Something else to comment?

Network analysis

Complete the following steps and answer the questions below when finished:
1- Increase the playback speed up to 5x
2- Resume the visualization and try to detect where is the source node. Pause the visualization.
3- Represent in a chart the transmitted bitrate for that node.
4- Move, without using the play/pause button, to the point of the simulation where the source reaches its maximum transmitted bitrate.
5- Remove the bitrate variable from the chart and use the same charts window to compare the number of packets forwarded and received by the source node.
6- Close the charts window and deselect the source node

Network analysis: How easy was it? *

Not so easy or difficult

Easy

Adjusting the playback speed

Detecting the source node

Using the charting system to represent the bitrate for a specific node

Using the time slider to move to a precise point of the simulation

Removing a variable from the charts window

Comparing two different variables in the charts window

Deselecting a node

Network analysis: Comments

Something else to comment?

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